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A Detailed Study of 4g in Wireless Communication: Looking Insight in Issues in Ofdm by Neelam Dewangan (Paperback / softback, 2013)

About this product

About this product

Product Information

As a promising technique, OFDM has been widely used in emerging broadband communication systems, such as digital audio broadcasting (DAB), high-definition television (HDTV), and wireless local area network (IEEE 802.11a and HIPERLAN/2). However, as the OFDM signals are the sum of signals with random amplitude and phase, they are likely to have large PAPR that require a linear high-power- amplifier (HPA) with an extremely high dynamic range which is expensive and inefficient. Furthermore, any amplifier nlinearity causes intermodulation products resulting in unwanted out-of-band power. A number of approaches have been proposed to deal with the PAPR problem, including amongst others, clipping, clipping-and-filtering (CF), coding, companding transform, active constellation extension (ACE), selected mapping (SLM), and partial transmit sequence (PTS). This book proposes an improvement in the selected mapping technique. The resulting scheme can also be applied to the multiple transmitting antenna cases. Further, it compares the simulation results to the existing techniques namely exponential companding transform, repeated clipping and filtering, and adaptive active constellation extension.

Product Identifiers

Publisher
Anchor Academic Publishing
ISBN-10
3954890844
ISBN-13
9783954890842
eBay Product ID (ePID)
190567475

Product Key Features

Author
Neelam Dewangan
Format
Unsewn / Adhesive Bound, Trade Paperback (US), Paperback / Softback
Language
English
Subject
Management & Business: General
Type
Textbook

Additional Product Features

Content Note
Black & White Illustrations
Author Biography
Mrs Neelam Dewangan is an assistant professor at Chhatrapati /shivaji Institute of Technology, Durg. She has completed her M.Tech in communication engineering from the Chhatrapati /shivaji Institute of Technology, and under the supervision of Mr. Mangal Singh, the professor and head of the Institute. Moreover, she has published many papers and attended many conferences in her area of interest including wireless communication, 4G, LTE, and mobile communication.
Date of Publication
16/08/2013
Country of Publication
United States

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